package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.rmi.server.LogStream;
import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;


    /**
     * 新增菜品
     *
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 菜品信息分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        lqw.like(name != null, Dish::getName, name);
        lqw.orderByDesc(Dish::getUpdateTime);
        dishService.page(pageInfo, lqw);
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map(item -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id) {
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }


    /**
     * 修改菜品
     *
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品成功");
    }


    /**
     * 根据条件查询对应的菜品数据
     *
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish) {
        //构造查询条件
        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        //模糊查询
        lqw.like(StringUtils.isNotEmpty(dish.getName()), Dish::getName, dish.getName());
        lqw.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
        //添加条件,查询状态为1的菜品
        lqw.eq(Dish::getStatus, 1);
        //添加排序条件
        lqw.orderByAsc(Dish::getSort).orderByAsc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(lqw);

        List<DishDto> resultList=list.stream().map(dishItem->{
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(dishItem,dishDto);

            //查询菜品的口味
            LambdaQueryWrapper<DishFlavor> flavorlqw = new LambdaQueryWrapper<>();
            flavorlqw.eq(DishFlavor::getDishId,dishItem.getId());
            List<DishFlavor> dishFlavors = dishFlavorService.list(flavorlqw);
            dishDto.setFlavors(dishFlavors);
            return dishDto;
        }).collect(Collectors.toList());
        return R.success(resultList);
    }

    /**
     * 菜品停售
     * @param ids
     * @return
     */
    @PostMapping("/status/0")
    public R<String> updata(@RequestParam List<Long> ids) {
        for (Long id : ids) {
            Dish dish = dishService.getById(id);
            dish.setStatus(0);
            dishService.updateById(dish);
        }
        return R.success("停售成功");
    }

    /**
     * 菜品起售
     * @param ids
     * @return
     */
    @PostMapping("/status/1")
    public R<String> update(@RequestParam List<Long> ids) {
        for (Long id : ids) {
            Dish dish = dishService.getById(id);
            dish.setStatus(1);
            dishService.updateById(dish);
        }
        return R.success("起售成功");
    }


    /**
     * 删除成功
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids:{}", ids);
        dishService.removeWithFlavor(ids);
        return R.success("菜品删除成功");
    }
}
